It is completing a full sleep cycle including REM sleep.

它包含一个完整的睡眠周期，包括快速眼动期睡眠。

And high-quality space-based observations go back just a decade—not even a full solar cycle.

而高质量的空间探测活动也才有十余年历史—甚至没有达到一个太阳活动周期的时间。

NASA says the moon takes 27.3 days to orbit Earth, but it takes 29.5 days to complete a full moon cycle.

NASA表示，月球绕地球一周需要27.3天，但完成一个满月周期需要29.5天。

Breathe into the lower back and go ahead and let the weight of your head release over here for one full breath cycle.

呼吸到下背部，继续前进，让您的头部重量在此释放一个完整的呼吸周期。

A nap can last anywhere from five minutes to three hours, so it can include full sleep cycles or just a few stages.

小睡可以持续5分钟到3小时不等，所以它可以包括一个完整的睡眠周期，也可能只包括几个阶段。

The mature identity is able to live in the full cycle.

成熟的身份能够生活在完整的周期中。

We had completed one full cycle of the seasons.

我们已经完成了一个完整的季节循环。